"so that's well documented. So that's a hurdle" what dose it mean ?

Question

dose it relate to any formula?

(so that's ... So that's) is it a grammar formula?

Answer 1

so or so that in purpose clauses:

Many people insist that so must be followed by that in formal writing when used to introduce a clause giving the reason for or the purpose of an action: He stayed so that he could see the movie a second time. But since many respected writers use so for so that in formal writing, it seems best to consider the issue one of stylistic preference: The store stays open late so (or so that) people who work all day can buy groceries.